| 摘要 |
In order to provide a memory control method and a memory controller, which can prevent an extra access even when a transfer frequency is uncertain, a memory access control method according to the invention is a method of controlling continuous transfers from a master connected to a system bus to the memory controller, wherein a transfer frequency of continuous transfers performed with respect to the memory controller is retained, and when the transfer frequency with respect to the memory controller is irregular, the transfer frequency for this time is predicted based on the retained past transfer frequency, and an access to a memory connected to the memory controller is performed first, based on the predicted transfer frequency. In other words, when the continuous access (burst transfer frequency) to the memory controller is irregular, the transfer frequency of the irregular continuous access currently performed is predicted, thereby enabling a reduction of extra access.
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